Warning: In order to solve this riddle, there's something you just have to know. If you don't know it, you are doomed. Usually I don't like to make riddles that require you to know about stuff any less mainstream than Monopoly. But I just couldn't resist this one.

If you don't get it, try asking your parents. Your mother should know.

-ATW

Casey and Andy and all characters therein are Copyright 2002-2005, Andy Weir. Casey and Andy
Updates on Monday, Wednesday, and Friday.